describe('removeLayer', function () {
    /////////////////////////////
    // SETUP FOR EACH TEST
    /////////////////////////////
    var clock, div, map, group;

    beforeEach(function () {
        clock = sinon.useFakeTimers();

        div = document.createElement('div');
        div.style.width = '200px';
        div.style.height = '200px';
        document.body.appendChild(div);

        map = L.map(div, {maxZoom: 18, trackResize: false});

        // Corresponds to zoom level 8 for the above div dimensions.
        map.fitBounds(new L.LatLngBounds([
            [1, 1],
            [2, 2]
        ]));
    });

    afterEach(function () {
        if (group instanceof L.MarkerClusterGroup) {
            group.clearLayers();
            map.removeLayer(group);
        }

        map.remove();
        div.remove()
        clock.restore();

        clock = div = map = group = null;
    });

    /////////////////////////////
    // TESTS
    /////////////////////////////
    it('removes a layer that was added to it', function () {

        group = new L.MarkerClusterGroup();

        var marker = new L.Marker([1.5, 1.5]);

        map.addLayer(group);

        group.addLayer(marker);

        expect(marker._icon.parentNode).to.be(map._panes.markerPane);

        group.removeLayer(marker);

        expect(marker._icon).to.be(null);
    });

    it('doesnt remove a layer not added to it', function () {

        group = new L.MarkerClusterGroup();

        var marker = new L.Marker([1.5, 1.5]);

        map.addLayer(group);

        map.addLayer(marker);

        expect(marker._icon.parentNode).to.be(map._panes.markerPane);

        group.removeLayer(marker);

        expect(marker._icon.parentNode).to.be(map._panes.markerPane);
    });

    it('removes a layer that was added to it (before being on the map) that is shown in a cluster', function () {

        group = new L.MarkerClusterGroup();

        var marker = new L.Marker([1.5, 1.5]);
        var marker2 = new L.Marker([1.5, 1.5]);

        group.addLayers([marker, marker2]);
        map.addLayer(group);

        group.removeLayer(marker);

        expect(marker._icon).to.be(undefined);
        expect(marker2._icon.parentNode).to.be(map._panes.markerPane);
    });

    it('removes a layer that was added to it (after being on the map) that is shown in a cluster', function () {

        group = new L.MarkerClusterGroup();

        var marker = new L.Marker([1.5, 1.5]);
        var marker2 = new L.Marker([1.5, 1.5]);

        map.addLayer(group);
        group.addLayer(marker);
        group.addLayer(marker2);

        group.removeLayer(marker);

        expect(marker._icon).to.be(null);
        expect(marker2._icon.parentNode).to.be(map._panes.markerPane);
    });

    it('removes a layer that was added to it (before being on the map) that is individually', function () {

        group = new L.MarkerClusterGroup();

        var marker = new L.Marker([1, 1.5]);
        var marker2 = new L.Marker([3, 1.5]);

        map.addLayer(group);
        group.addLayer(marker);
        group.addLayer(marker2);

        expect(marker._icon.parentNode).to.be(map._panes.markerPane);
        expect(marker2._icon.parentNode).to.be(map._panes.markerPane);

        group.removeLayer(marker);

        expect(marker._icon).to.be(null);
        expect(marker2._icon.parentNode).to.be(map._panes.markerPane);
    });

    it('removes a layer (with animation) that was added to it (after being on the map) that is shown in a cluster', function () {

        group = new L.MarkerClusterGroup({animateAddingMarkers: true});

        var marker = new L.Marker([1.5, 1.5]);
        var marker2 = new L.Marker([1.5, 1.5]);

        map.addLayer(group);
        group.addLayer(marker);
        group.addLayer(marker2);

        //Run the the animation
        clock.tick(1000);

        expect(marker._icon).to.be(null);
        expect(marker2._icon).to.be(null);

        group.removeLayer(marker);

        //Run the the animation
        clock.tick(1000);

        expect(marker._icon).to.be(null);
        expect(marker2._icon.parentNode).to.be(map._panes.markerPane);
    });

    it('removes the layers that are in the given LayerGroup', function () {

        group = new L.MarkerClusterGroup();

        var marker = new L.Marker([1.5, 1.5]);
        var marker2 = new L.Marker([1.5, 1.5]);

        map.addLayer(group);
        group.addLayers([marker, marker2]);

        var layer = L.layerGroup();
        layer.addLayer(marker2);
        group.removeLayer(layer);

        expect(marker._icon).to.not.be(undefined);
        expect(marker2._icon).to.be(undefined);
    });

    it('removes the layers that are in the given LayerGroup when not on the map', function () {

        group = new L.MarkerClusterGroup();

        var marker = new L.Marker([1.5, 1.5]);
        var marker2 = new L.Marker([1.5, 1.5]);

        group.addLayers([marker, marker2]);

        var layer = L.layerGroup();
        layer.addLayer(marker2);
        group.removeLayer(layer);

        expect(group.hasLayer(marker)).to.be(true);
        expect(group.hasLayer(marker2)).to.be(false);
    });

    it('passes control to removeLayers when marker is a Layer Group', function () {

        group = new L.MarkerClusterGroup();

        var marker1 = new L.Marker([1.5, 1.5]);
        var marker2 = new L.Marker([1.5, 1.5]);

        group.addLayers([marker1, marker2]);

        var layer = L.layerGroup();
        layer.addLayer(marker2);
        group.removeLayer(new L.LayerGroup([layer]));

        expect(group.hasLayer(marker1)).to.be(true);
        expect(group.hasLayer(marker2)).to.be(false);
    });
});
